NORTH LIBERTY HIGHER SECONDARY SCHOOL CLASS VI ... VI/First Term 2017/Maths... · LESSON 11: BASIC...
Transcript of NORTH LIBERTY HIGHER SECONDARY SCHOOL CLASS VI ... VI/First Term 2017/Maths... · LESSON 11: BASIC...
NORTH LIBERTY HIGHER SECONDARY SCHOOL
CLASS VI (____) – MATHEMATICS – CLASSWORK SHEET 1
NAME:_____________________________________ DATE:______________
LESSON 11: BASIC GEOMETRICAL IDEAS
QI. Draw the line segments. (a) 5.3 cm
(b) 10.3 cm
(c) 9.2 cm
(d) 7.7 cm
QII. Using the given figure, classify the following angles as obtuse, acute or right angle.
Also, write their measures.
(a) ∠AOЕ _____________________________ (b) ∠СOD _____________________________
(c) ∠BOK _____________________________ (d) ∠СOI _____________________________
(e) ∠ЕOK _____________________________ (f) ∠EOM _____________________________
(g) ∠GОМ _____________________________ (h) ∠IOM _____________________________
QIII. Specify whether the angles are acute, obtuse, right, straight, or reflex angles.
(a) (b)
(i) ∠ABC _____________________________ (i) ∠ADE _____________________________
(ii) ∠BCD _____________________________ (ii) ∠BAD _____________________________
(iii) ∠CDE _____________________________ (iii) ∠AED _____________________________
(iv) ∠DEA _____________________________ (iv) ∠AEC _____________________________
(v) ∠BAE _____________________________ (v) ∠BED _____________________________
QIV. Classify the angles as obtuse, acute, right, straight, or reflex and fill up the table.
(a) 90° (b) 180° (c) 350° (d) 89° (e) 210° (f) 27°
Reflex angles _________________________________________________________________
Acute angles _________________________________________________________________
Right angles _________________________________________________________________
Obtuse angles _________________________________________________________________
Straight angles _________________________________________________________________
NLHSS – CLASS VI (__) – MATHS – PPT 1
NAME__________________________ DATE______
LESSON 11: BASIC GEOMETRICAL IDEAS
Duration: 15 minutes Marks: 20 marks
General Instructions: Use a pencil to answer the following questions.
QI. Draw the line segments. (½ × 4 = 2)
(a) 5.3 cm
(b) 7.7 cm
(c) 4.8 cm
(d) 3.1 cm
QII. Classify the angles as obtuse, acute, right, straight, or reflex. (½ × 4 = 2)
(a) 89° ______________________________________________
(b) 270° ______________________________________________
(c) 350° ______________________________________________
(d) 100° ______________________________________________
QIII. Specify whether the angles are acute, obtuse, right, straight, or
reflex angles. (½ × 4 = 2)
(i) ∠ABC ___________________________________________
(ii) ∠DAB ___________________________________________
(iii) ∠ADC ___________________________________________
(iv) ∠BCD ___________________________________________
QIV. Using the given figure, classify the following angles as obtuse,
acute or right angle. Also, write their measures. (½ × 8 = 4)
(a) ∠COM ______________________________ ____________
(b) ∠IOM ______________________________ ____________
(c) ∠GОМ ______________________________ ____________
(d) ∠JOA ______________________________ ____________