Page 5 - Activity

Answer:
(b), (c)

Question 7.
Name three sides of a right angled triangle.
Answer:
Base, perpendicular, hypotenuse.

Question 8.
ABC is an Isosceles triangle with AC = BC. If AB = 2AC then ABC is a right triangle
2
2
and ∠B = 90°.

Answer:
No, ∠C = 90°.

Question 9.
Who was the founder of Pythagoras theorem ?
Answer:
Famous greekphilosopher, Phythagoras.

Question 10.
Is Pythagoras theorem applicable for an equilateral triangle ?
Answer:
No.

Question 11.
What is Pythagoras theorem ?
Answer:
In a right triangle, the square of the hypotenuse is equal to the sum of the squares of
the other two sides.

Multiple Choice Questions

Question 1.
Find all angles of an isosceles right-angled triangle.
(a) 30°, 60°, 90°
(b) 20°, 70°, 90°