(on geometry )

19. in δdef, if δde ≅ δdf is the hypotenuse, then δdef is

a. acute and scalene.
b. right and scalene.
c. right and isosceles
d. obtuse and isosceles

20. the measure of two angles of a triangle are 38° and 47° what type of triangle is this ?

a. acute
b. obtuse
c. right
b. equiangular

21. if δigh ≅ δklj, then ∠h is congruent to

a. ∠k
b. ∠l
c. ∠j
d. ∠g

Question 10jur's car can travel 340 miles on 12 gallons. jack's car can travel 390 miles on16 gallons. which person has the best mileage (miles per gallon) and what istheir mileage?

Determine the number of outcomes in the event. decide whether the event is a simple event or not. upper a computer is used to select randomly a number between 1 and 9 comma inclusive. event upper b is selecting a number greater than 4. event upper b has nothing outcome(s). is the event a simple event? (yes or no) because event upper b has (fewer than, exactly, more than) one outcome.

An arc subtends a central angle measuring 7pi/4 radians what fraction of the circumference is this arc?