Answer:
y = -9
Step-by-step explanation:
Using the Heron's formula, the area of the triangle is: D. 95 square inches.
<h3>What is the Heron's Formula?</h3>
Area = √[s(s - a)(s - b)(s - c)] where s is half the perimeter, or (a + b + c)/2.
Given the following:
s = semi-perimeter = 1/2(50) = 25 in.
a = length of side a = 22 in.
b = length of side b = 13 in.
c = length of side c = 50 - 22 - 13 = 15 in.
Plug in the values
Area = √[25(25 - 22)(25 - 13)(25 - 15)]
Area = √[25(3)(12)(10)]
Area ≈ 95 square inches.
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Answer:
Step-by-step explanation:
Let height = x cm
Base = 3x cm
Area of triangle = 63 cm^2

x = 6.48
Height = 6.5 cm
Answer:
Option (3)
Step-by-step explanation:
Volume of a rectangle = 
Area of the rectangular base = Length × Width
= 7 × 8
= 56 square in.
Height of the pyramid = 9 in.
Therefore, Volume of the given pyramid = 
= 168 cubic in.
Option (3) will be the correct option.
Answer:
it’s a multi step equation
Step-by-step explanation:
solve like a multi step