First, area of large circle(A1)= pie×R^2
=3.14×(3+4)^2=3.14×49=154 sq. cm
area of small circle (A2) pie× r^2
=3.14×3^2=28.27 sq.cm
now
area of shaded region= (A1-A2)/3
=(154-28.27)/3
=125.73/3
=41.91 sq. cm
384 m²
Explanation:
Since an octogon has 8 sides, it can be split into 8 different triangles.
To find the area of one triangle, use the formula a=bh½, or area=base×height×½. The base it 12m and the height is 8m, so do 8×12=96, then divide by 2 to get 48.
Since there are 8 triangles, multiply the area of 1 triangle by 8, and 48×8=384m².
Hope this helps!
Answer:
48
Step-by-step explanation:
add all the numbers up and divide by number of numbers
Answer:
61°
Step-by-step explanation:
EOF + FOG = EOG
EOF = 18°
EOG = 79°
EOF + FOG = EOG
FOG = EOG - EOF
FOG = 79° - 18°
FOG = 61°
Hence, m/_FOG = 61°