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Trigonometry or smth 1. If a leg of an isosceles triangle is 12 cm, what is the measure of the other leg? 2. Find the longer leg of a 309 – 60°- 900 triangle if the shorter leg is 13 cm. 3. In a 45° - 450- 90° triangle, find the measure of each leg if the opposite of 90° angle is 20 cm.
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isn't this 9th grade math stuff lol, uh idk if these are correct but
1.) 12 cm(?)
2.)13 times the square root of 3
3.) 10 times the square root of 2 2 reply
idk if this is correct but here's what i got
1. 12 cm
solution:
the legs of an isosceles triangle are congruent/equal
2. hypotenuse: 26 cm, other leg: 13(√3) or 22.517 cm
solution:
using special right triangle 30-60-90
to find the hypotenuse:
2*13 = 26
to find the other leg:
13*(√3) = 13(√3) = 22.517
3. (20(√2))/2 cm
solution:
using s...... 1 reply
for number 2, "309 – 60°- 900 triangle"? you sure about that?
anyways here's what i found from googling
"If you know one side of a 30-60-90 triangle, you can find the other two by using shortcuts. Here are the three situations you come across when doing these calculations:
Type 1: You know the short leg (the side across from the 30-degree angl...... reply