Question

Assertion : The height of the triangle is 18 cm and its area is 72 cm. Its base is 8 cm. 1 2 . Reason : Area of a triangle = } x base x height.
A) oth A and Rare true and Ris the correct explanation of A.
B) Both A and Rare true but Ris not the correct explanation of the A.
C) A is true but Ris false.
D) A is false but Ris true​

Answer 1

Answer:

answer will be option b answer

Answer 2

Given,

Assertion: The height of the triangle is 18 cm and its area is 72 cm². Its base is 8 cm.

Reason: Area of a triangle = base × height

Solution,

Know that the formula for area of triangle (A) whose base and height is b and h respectively.

$\[A = \frac{1}{2} \times b \times h\]$

Check the assertion,

Put the assertion values in the above written triangle area formula.

$\[\begin{array}{l}A = \frac{1}{2} \times b \times h\\ \Rightarrow A = \frac{1}{2} \times 8 \times 18\\ \Rightarrow A = 72c{m^2}\end{array}\]$

Hence, assertion is correct.

Check the reason statement,

The given formula for area of triangle is wrong. Hence, reason is wrong.

Correct option:

(c) A is true but R is false.