Answer:
(8+9) 3 - 1 = 50
Step-by-step explanation:
8 + 9 = 17
17 x 3 = 51
51 - 1 = 50
FHdhdhdhhdhdjdjddjjdjsjxjxjdjxjdAnswer:
Step-by-step explanation:
Answer:
5) Regular decagon. 6) Yes.
Step-by-step explanation:
Number 6 is yes bc the interior angles of a triangle have to equal 180, and 1+2+177 equals 180.
Answer:
B
Step-by-step explanation:
First calculate BD using sine ratio in Δ BCD and the exact value
sin60° =
, thus
sin60° =
=
=
=
( cross- multiply )
2BD = 12
( divide both sides by 2 )
BD = 6
-----------------------------------------------------------
Calculate AD using the tangent ratio in Δ ABD and the exact value
tan30° =
, thus
tan30° =
=
=
=
( cross- multiply )
AD = 6
( divide both sides by
)
AD = 6 → B
Answer:
36°
Step-by-step explanation:
circle has 360°, divide that by 10 to get 36