6 acts as the base. 15 acts as the height, because it extends from the base to meet vertex opposite the base at a 90° angle.
General formula for triangle area
a = 1/2 × b × h
plug in the numbers
a = 1/2 × 6 × 15
a = 90/2
a = 45
The area of the triangle is 45 units²
Answer:
23
Step-by-step explanation:
23
It already is in unit form.
40 + 1.2 + .25 = 41.45
30 + 1.4 + .045 = 31.445
41.450 - 31.445 = 10.005
or one ten 5 thousandths
