비와 방정식으로 삼각형의 각 구하기

Daniel Math Academy · Grade 7 Math

Triangle Angles with Ratios & Equations

Skill K.3 · Triangles & polygons · ★★☆ Medium

Name

 

Date

 

Score/ 4

Scan for answers

Answer each question.

1. 1
   A triangle's angles measure $(x+40{)}^{\circ }$, $(4x+38{)}^{\circ }$, and $x^{\circ }$. Find $x$.
2. 2
   A triangle's angles measure $x^{\circ }$, $(3x+13{)}^{\circ }$, and $(2x+35{)}^{\circ }$. Find $x$.
3. 3
   A triangle's angles measure $x^{\circ }$, $(x+33{)}^{\circ }$, and $(2x+35{)}^{\circ }$. Find $x$.
4. 4
   A triangle's angles measure $x^{\circ }$, $(4x+22{)}^{\circ }$, and $(3x+30{)}^{\circ }$. Find $x$.

Daniel Math Academy · Grade 7 Math

Answer Key

K.3 Triangle Angles with Ratios & Equations · ★★☆ Medium

1. 1$x=17$
2. 2$x=22$
3. 3$x=28$
4. 4$x=16$