(1) ∠a,∠b を求めなさい.
a 75° b 50° |
(2) ∠a,∠b を求めなさい.
a 55° 85° b |
(3) ∠a,∠b を求めなさい.
a 65° b 35° |
(4) ∠a,∠b を求めなさい.
a 60° b 95° |
(5) ∠a,∠b を求めなさい.
a 65° b 90° |
(6) ∠a,∠b を求めなさい.
a 60° 55° b |
(1) ∠a,∠b を求めなさい.
a 75° b 50° ∠b=180−75−50=55° |
(2) ∠a,∠b を求めなさい.
a 55° 85° b ∠b=180−55−85=40° |
(3) ∠a,∠b を求めなさい.
a 65° b 35° ∠b=180−65−35=80° |
(4) ∠a,∠b を求めなさい.
a 60° b 95° ∠b=180−60−95=25° |
(5) ∠a,∠b を求めなさい.
a 65° b 90° ∠b=180−65−90=25° |
(6) ∠a,∠b を求めなさい.
a 60° 55° b ∠b=180−60−55=65° |