Question

Segment BD is an altitude of triangle ABC. Find the area of the triangle.
a. 7.5

b. 9.5

c. 10

d. 15

Answer 1

remember the formula for "Area of triangle" ?

Answer 2

no

Answer 3

Area = \(\large \frac{1}{2} b h\)

Answer 4

find out \(b\) and \(h\) from the given figure and plugin

Answer 5

idk the base or height

Answer 6

since BD is given as altitude, it is the height :
\(h = BD = ?\)

Answer 7

look at the figure,
just count # of grids from B to D

Answer 8

so the base is 5

Answer 9

& the height is 3

Answer 10

Excellent !!!!

Answer 11

plug them in the formula

Answer 12

and then 1/2*5*3 is 7.5

Answer 13

so it's A

Answer 14

perfect ! good job :)

Answer 15

thanks!

Answer 16

np.. u wlc :)