Answer:
A
Step-by-step explanation:
RT=12
TU=5
RU=12+5=17
RS=17+7=24
SU=√(RS²-RU²)=√(24²-17²)=√(24-17)(24+17)=√(7×41)=√287
area=1/2×12×√287=6×√287≈101.6 unit²
All of the angles in a triangle add up to 180 so you can set this equation up:
2x - 10 + x + 30 + 70 = 180
Now combine lie terms.
3x + 90 = 180
Subtract 90 from both sides.
3x = 90
Now divide three from both sides to get x.
x = 30
Now you know x so plug it into angle A to get the answer
2 (30) - 10
60 - 10
50
50 is the value of angle A!
Hope that helps! Let me know if you have any questions!
- mathwizzard3
1 gal because there is 16 cups in a gallon
Answer:
1.75
Step-by-step explanation:
314k - 26 = 522
314k + 26 = +26
314k = 548
/314 = /314
k = 1.74522292994
k = 1.75
Height = sqrt(5^2 - 4^2) = sqrt(9) = 3
Area = length x height
Area = 8 x 3 = 24m^2