Question

Segment RS is an altitude of triangle PQR. Find the area of the triangle.

a. 15.5
b. 16
c. 17.5
d. 18

Answer 1

16

Explanation:

Answer 2

You can use the formulas:

Area =
`(base*altitude)/(2)`

AB =
`\sqrt{ ( x_(B)- x_(A) )^(2) + ( y_(B)- y_(A) )^(2) }`

P(-2, 1), Q(6, 1), R(4, -3), S(4, 1)

Base = PQ =
`\sqrt{ 8^(2) + 0^(2) } =8`
Altitude = SR =
`\sqrt{ (0^(2) + (4^(2) } =4`

Area =
`(8*4)/(2) =16`

The right answer is : B. 16