Question

Just slighty confused and couldnt find a tutorial in my textbook​

Answer 1

B

Explanation:

the area (A) of a triangle is calculated as

A =
`(1)/(2)` bh ( b is the base and h its perpendicular height )

here b = 10 and h = 5 , then

A =
`(1)/(2)` × 10 × 5 = 5 × 5 = 25 units²