Answer:
1) Nope. ∠1 and ∠2 are not adjacent because they do not have a common arm. even if they have the same vertex.
2)∠CXE
3) ∠CXE since ∠5 or ∠DXE =90 and both angles ∠DXE and ∠CXE are Supplementary. so ∠CXE=90
4)Yes. coz ∠2 =∠3= vertical angles, and ∠5=90. so ∠1 +∠3 =90 . and they don't have to be adjacent to be complementary angles.
5)nope.
6)∠3
7)∠2 =∠3=? and ∠2 &∠1 are complementary angles.
so: 90= ∠2 +∠1
90 - ∠1 =∠2
∠2 = 90 - 50 = 40°
8)∠3 and/ or ∠2
again: since ∠2 =∠3 vertical angles.
9)yes. they form a line or 180°.
10) ∠3 = 90 - ∠1
or ∠3 = 180 - ∠5 - ∠1
if following the sample ∠1 = 50 at questions 7.
so ∠3 = 90- 50=40°
so the correct measure of ∠3 = 90 - ∠1
Copyright © 2024 EHUB.TIPS team's - All rights reserved.
Answers & Comments
Answer:
1) Nope. ∠1 and ∠2 are not adjacent because they do not have a common arm. even if they have the same vertex.
2)∠CXE
3) ∠CXE since ∠5 or ∠DXE =90 and both angles ∠DXE and ∠CXE are Supplementary. so ∠CXE=90
4)Yes. coz ∠2 =∠3= vertical angles, and ∠5=90. so ∠1 +∠3 =90 . and they don't have to be adjacent to be complementary angles.
5)nope.
6)∠3
7)∠2 =∠3=? and ∠2 &∠1 are complementary angles.
so: 90= ∠2 +∠1
90 - ∠1 =∠2
∠2 = 90 - 50 = 40°
8)∠3 and/ or ∠2
again: since ∠2 =∠3 vertical angles.
9)yes. they form a line or 180°.
10) ∠3 = 90 - ∠1
or ∠3 = 180 - ∠5 - ∠1
if following the sample ∠1 = 50 at questions 7.
so ∠3 = 90- 50=40°
so the correct measure of ∠3 = 90 - ∠1