Answer:
a = -4
Step-by-step explanation:
2 = 3 + a/4
-1 = a/4
-4 = a
That is a rhombus and the formula is A= PQ/2
5.5xAnswer:
Step-by-step explanation:
Answer:
7161 km³
Step-by-step explanation:
28²+b²=32.5²
784+b²=1056.25
b²=1056.25-784
b²=272.25
b=√272.25
b=16.5
1/2x28x16.5x31=7161
Answer:
x=18
y=10
Step-by-step explanation: