i need a photo like stooooopidd
Let's say that y is the unknown
180=2x+3+5x+1+y
180=7x+4+y
180-7x-4=y
176-7x=y=third angle
Answer:
8.1
Step-by-step explanation:
2x^2 -9 = 121
+9 +9
2x^2 = 130
/2 /2
x^2 = 65
x= sqrt (65)
x= 8.06225...
x = 8.1
Answer:
x = 94
Step-by-step explanation:
(86 + x)/2 = 90
86 + x = 180
x = 94
Answer:
Triangular prism with a surface area of 144, C
Step-by-step explanation:
4 x 3 = 12, 12 divided by 2 ( x 1/2 ) = 6
6 x 2 = 12
3 x 11 = 33
4 x 11 = 44
5 x 11 = 55
12 + 33 + 44 + 55 = 144
