All of them except the 3rd one
Answer:
Height and base are both 12 in
Step-by-step explanation:
Formula area triangle: area = (height * base) /2
Since for the first triangle height and base are the same we will call is x.
The area for the first triangle is
area = (x^2) /2 = 0.5x^2
The new triangle area is
first triangle - 36 = ((x/2) * x)/2
0,5x^2 - 36 = (0,5x * x)/2
0,5x^2 - 36 = (0,5x^2)/2
0,5x^2 - 36 = 0,25x^2
0,25x^2 = 36
x^2 = 144
X = square root (144) = 12 in
Let thd centre be O
Draw a line joining B and C
Angle OCB= 46 (alternate angles)
Angle COB= 180-46-46= 88
Angle BOA= 180-88-46=46
46 =x+4
x=42
Answer:
-15625
Step-by-step explanation:
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Answer:
A
Step-by-step explanation:
X before Y
