
Explanation:
The triangle is right angled.
The formula for area of the triangle:

base = 3
height = 4
substitute the values:
Answer:
Step-by-step explanation:
7x-7-2x-2+3x-12=8x-21
I think
1800 gal converts to 7200 quarts, and divide that by 60 you get 120 quarts of water per second.
Answer:
should be 80, angle 50 is congruent on both sides to 50+50 equals 100. The triangle sum theorem says a triangle adds up to 180 degrees so we are left with 80, X=80 degrees