Triangle ABC is an isosceles right triangle. What is the measure of one base angle? 30º 45º 60º 90º pl help

45

Step-by-step explanation:

In an isosceles triangle the base angles are the same. If all of the angles in a triangle add up to 180 and one of them is 90 because it’s a right triangle, then both base angles add up to 90. 90/2 is 45, so that’s your answer.

45°

Step-by-step explanation:

The measure of a base angle of an isosceles right triangle is 45 degrees. In any triangle, the measure of all three angles equals 180 degrees

In rt angle triangle,

One angle is 90 deg.

other 2 angles are equal (Angles Opp. to equal sides)

90°+45°+45°=180° (Angle sum property of triangle)

so other 2 angles are 45° each. (Base angles)

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answer:  

step-by-step explanation:

here x represents the height of the pole,

and, the height of the shadow of the pole is 12 feet.

also, the angle of elevation from the top of the pole is 40°,

therefore,

by the low of sine,

which is the required equation for finding the value of x,

answer set (b) 0.5, 3/4 80% is in order from least to greatest.  

step-by-step explanation:

in order to compare rational numbers to each other, it is much easier if they are in the same form.   typically, the best form in which to evaluate rational numbers is in decimals.   in order to convert a percent to a decimal, you would divide the given percentage by 100.   you can also accomplish the conversion by moving the decimal point over two places to the left.   for example, the decimal value of 80% is 80/100, or 0.8.   in order to convert a fraction to a decimal, you need to divide the numerator by the denominator.   for example, 3/4 is 0.75.   so, for choice (b) 0.5 3/4 (0.75), 80% (0.8) is the only choice in which the numbers are in order from least to greatest.