Triangle def contains two congruent acute angles. the sum of the measures of the two congruent acute angles is greater than 90 degrees. anna concludes that the triangle must be an acute triangle. which best describes her conclusion?

a. she is correct. a triangle having at least one acute angle is an acute triangle.

b. she is correct. the remaining angle of the triangle measures less than 90 degrees.

c. she is incorrect. the angles measure greater than 90 degrees so the triangle is obtuse.

d. she is incorrect. the third angle in a triangle with two congruent acute angles is a right angle.

Percent increase and decrease. original number: 45 new number: 18

Arestaurant added a new outdoor section that was 8 feet wide and 6 feet long. what is the area of their new outdoor section

On the way home from visiting his family, vincent’s plane cruised at an altitude of 3.2 × 10^4 feet. he had heard that a man named felix baumgartner skydived from an altitude of 1.28 × 10^5 feet. vincent wants to know how much higher felix went on his skydiving trip. question 1 you have already seen how adding numbers works in either scientific notation or standard notation. but can you subtract numbers in scientific notation and get the same results as subtracting in standard notation? to find out, first solve vincent’s problem in standard notation. part a write the cruising altitude of vincent’s plane in standard notation.