NCTB Class 6 Math Chapter Seven Exercise 7 Solution by Math Expert. Bangladesh Board Class 6 Math Solution Chapter 7 “Practical Geometry” Exercise 7 Solution.
|
Board |
NCTB |
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Class |
6 |
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Subject |
Mathematics |
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Chapter |
7 |
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Chapter Name |
”Practical Geometry” |
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Exercise |
7 Solution |
Exercise:- 7
(1) What is the measure of the supplementary angle of 280?
Solution:-
The measure of the supplementary angle of 280 = (90-28)0
(a) = 620
(2) What is the measure of the vertically opposite angle of 370?
Solution:-
Vertically opposite angle of 370
(180-37)0
= 1430 (d)
(3) What is the sum of two angles complementary to each other?
Solution:-
Sum of two complementary to each other (c) 900.
(4) If one of the three angles of a triangle is 450, what will be another greater angle?
Solution:-
If one of the three angles of a triangle is 450, what will be the another greater angle – (c) 900
(5) In case of construction
Solution:-
Correct – (i), (ii), (iii)
(10) Use a ruler to draw a line segment of a length of 8 cm. Use the ruler and the compass to make a copy of this line segment.
(11) Draw a line segment of a length of 6 cm. Use the ruler and the compass to bisect this line segment. Measure the length of the segments and verify whether they are equal or not?
(12) Use a ruler to draw a line segment of a length 8 cm. Use the ruler and the compass to divide the line segment into four equal parts
(13) Using a ruler and a compass draw a perpendicular bisector of a line segment of a length of 7 cm.
(14) Draw perpendicular bisector of a line segment of a length of 8 cm.
(15) Draw perpendicular CD at a point C on a line AB. Again, take any other point E on CD and draw a perpendicular at E.
(16) Draw the angle 450 without using a protractor.
(17) Draw the bisectors of the three angles of the triangle ABC and identify their common point of intersections.
(18) In the adjacent diagram
(19) In the adjacent diagram
