Triangle STV has side lengths of 7, 11, and 14 units. Determine whether this triangle is a right triangle.

The triangle STV is not a right angled triangle.

Explanation:

Given that STV is a triangle with side lengths of 7, 11 and 14 units

We need to determine that STV is a right angled triangle.

Using Pythagorean theorem, we have,

where and

Substituting the values in the above formula, we have,

Squaring the terms, we get,

Since, both sides of the equation are not equal, then the triangle STV is not a right angled triangle.

a

step-by-step explanation:

answer: 75°

step-by-step explanation:

∠esk is the supplement of ∠edk, so is 100°. ∠esd = 1/2·arc ed, so is 25°.

since ∠esk = ∠esd + ∠dsk

you have 100° = 25° + ∠dsk . .

fill in known values 75° = ∠dsk . . . . .

subtract 25°

step-by-step explanation: