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stiv31 [10]
2 years ago
5

The formula A=1/2bh can be used to find the area of a triangle. Solve the formula for h, and use your equation to find the heigh

t of a triangle with an area of 90 cm2 and a base of 15 cm.
Mathematics
1 answer:
sveticcg [70]2 years ago
6 0

we conclude that the height of the triangle measures 12 centimeters.

<h3>How to find the height of the triangle?</h3>

We know that the area of a triangle is given by the formula:

A = b*h/2

We can solve that equation for h, so we get:

h = 2*A/b

Now, we know that the area is 90cm^2, and the base measures 15 cm, replacing these two values we can get:

h = 2*(90cm^2)/15cm =  12cm

In this way, we conclude that the height of the triangle measures 12 centimeters.

If you want to learn more about triangles:

brainly.com/question/2217700

#SPJ1

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Please help!!! Will give brainly!! 50 points. No wrong answers!!
Mrac [35]

The three little lines through the sides of the triangle mean all three sides are equal. Because all three sides are equal the three inside angles would aso be equal.


The three angles of a triangle need to equal 180, so we can divide 180 by 3 to find what each angle is:

180 / 3 = 60.


Now we can set the equation with x in it to equal 60:


7x +4 = 60

Subtract 4 from each side:

7x = 56

Divide each side by 7:

x = 56 / 7

x = 8



5 0
3 years ago
What is the common difference of the following arithmetric sequence? 102,100,98,96...
pshichka [43]

the common difference is two of course

3 0
3 years ago
Please help answer needed asap
Basile [38]

Answer:

A

Step-by-step explanation:

a = 3n-30       solve for 'n'

a + 30 = 3n

n = (a+30)/3

n(a) = (a+30)/3

5 0
2 years ago
A rectangular flower bed is five feet longer than it is wide. its area is eighty-four square feet.
777dan777 [17]
Lets say w is the width of the flower bed. We can make an equation to find the area.
The length of the of the flower bed is (w+5) and the width is w.
To find the area we need to multiply the length(w+5) by the width(w) and set it equal to 84,
(w+5)(w)=84
w^2 +5w=84
Using the quadratic equation you get the solutions of 7 and -12. Since 7 is positive it is our width. Our length is 7+5 or 12.
3 0
3 years ago
Find the number of hours each person work
Lina20 [59]
J stands for Jon, A stands for Angelica, and C stands for Chaya.

J = C - 3
A = C + 4
C = A - 4

= 196 h

62 + 65 + 69 = 196

Jon worked 62 hours, Chaya worked 65 hours, and Angelica worked 69 hours.

And that's your answer! ^ I hope this helped you! c:

6 0
3 years ago
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