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2 years ago

Triangle abc is an isosceles right triangle. What is the measure of one base angle? 30ş 45ş 60ş 90ş.

Mathematics

1 answer:

alisha [4.7K]2 years ago

5 0

Answer:

45°

Step-by-step explanation:

The acute angles of a right triangle are complementary. The base angles of an isosceles triangle are congruent. If x is the measure of the base angles, this requires ...

x = 90-x . . . . . the base angle is congruent to the other base angle

2x = 90 . . . . . add x

x = 90/2 = 45 . . . . divide by 2

The measure of a base angle of an isosceles right triangle is 45°.

It can be useful to remember this fact.

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Read 2 more answers

1. Determine whether line KM and line ST are Parallel, Pers

Andrews [41]

Answer:

Since the slope of KM and ST are different, they are not parallel

Step-by-step explanation:

Slope of line KM = $\frac{5}{8}$

Slope of ST = $-\frac{8}{5}$

Determine whether the lines are perpendicular;

Solution:

We can use the slope of a line to determine whether they are perpendicular or parallel to one another.

Parallel lines do not meet one another

Perpendicular lines cross one another at an angle of 90°

Two lines are parallel if their slopes are the same;

Since the slope of KM and ST are different, they are not parallel

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