First, we need to find the base. To do so, we will need to use the Pythagorean Theorem on one of the smaller triangles to solve for its unknown side. Then, we can double the base of the one to find the base of the whole.

Pythagorean Theorem: a^2 + b^2 = c^2

(12)^2 + b^2 = (16)^2

144 + b^2 = 256

b^2 = 112

b = $\sqrt{112}$

b = $4\sqrt{7}$

total base = 2 x $4\sqrt{7}$ = $8\sqrt{7}$

Second, we can find the area. The formula for the area of a triangle is A = 1/2 x base x height.

A = 1/2 x $8\sqrt{7}$ x 12

A = $4\sqrt{7}$ x 12

A = $48\sqrt{7}$ units^2

Third, we can find the perimeter. The perimeter is the sum of all of the exterior sides.

P = 16 + 16 + $8\sqrt{7}$

P = 32 + $8\sqrt{7}$ units

Hope this helps!! :)

6 0

3 years ago

Please help me if the x coordinate if the y coordinate is 4

Vlad1618 [11]

Answer:

Step-by-step explanation:

The y-coordinate is 4, so we count 4 units up the y-axis from the x-axis. You can also look at it as counting 4 units up from the origin. Then, we look at graph C. When y=4, when we're 4 units above the x-axis, x=1 since the point on the line falls 1 unit to the right of the y-axis.

I hope this helps!

8 0

3 years ago

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