Question

angle DEF is a right with angleE = 90°, what type of angles are D and angle F?
a)Obtuse angle
b)acute angle
c)right angles
d)none of these​

Answer 1

Answer:

B ACUTE ANGLE

Step-by-step explanation:

SUPPOSE DEF AS A TRIANGLE. THE ADDITION OF ANGLES OF A TRIANGLE IS 180.

SO X+x+90=180,

SO X+x=90(180-90)

SO X MUST BE ACUTE ANGLES.

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