Area of a triangle Multiple Choice Questions Quiz

Question 1:What is the formula for the area of a triangle?

(A) (1/2) × base × height
(B) base × height
(C) (1/3) × base × height
(D) base + height

Question 2:If a triangle has a base of 10 cm and a height of 5 cm, what is its area?

(A) 20 cm²
(B) 25 cm²
(C) 30 cm²
(D) 50 cm²

Question 3: A triangle has an area of 24 cm² and a base of 8 cm. What is its height?

(A) 3 cm
(B) 4 cm
(C) 6 cm
(D) 12 cm

Question 4:A right-angled triangle has legs of 6 cm and 8 cm. What is its area?

(A) 12 cm²
(B) 16 cm²
(C) 20 cm²
(D) 24 cm²

Question 5:The base of a triangle is doubled, and the height remains the same. What happens to the area?

(A) Area doubles
(B) Area triples
(C) Area remains the same
(D) Area reduces to half

Question 6:A triangle has an area of 40 cm² and a height of 8 cm. What is its base?

(A) 5 cm
(B) 10 cm
(C) 20 cm
(D) 40 cm

Question 7:If the height of a triangle is tripled, how does the area change?

(A) Area is halved
(B) Area remains same
(C) Area triples
(D) Area quadruples

Question 8:What is the area of an equilateral triangle with a side length of 6 cm?

(A) 6√3 cm²
(B) 8√3 cm²
(C) 9√3 cm²
(D) 10√3 cm²

Question 9:A triangle has a base of 15 cm and an area of 45 cm². What is its height?

(A) 3 cm
(B) 5 cm
(C) 6 cm
(D) 9 cm

Question 10:The area of a triangle is 60 cm². If both its base and height are doubled, what is the new area?

(A) 120 cm²
(B) 240 cm²
(C) 300 cm²
(D) 360 cm²