Question

Tentukan luas bangunan yang diarsir pada gambar di atas !​

Answer 1

Verified answer

p = 35 cm

l = 21 cm

r = 21/2 = 10,5 cm

• L. arsir

[tex] \tt \Rightarrow L_{\boxed{~}} - L_{\circ} [/tex]

[tex] \tt \Rightarrow (p~ \times ~l) - (\pi {r}^{2}) [/tex]

[tex] \tt \Rightarrow (35 ~ cm \times 21 ~ cm) - ( \frac{22}{7} \times {10,5}^{2}) [/tex]

[tex] \tt \Rightarrow 735 - (\frac{22}{7} \times 110,25) [/tex]

[tex] \tt \Rightarrow 735 - \frac{2.425,5}{7} ~ {cm}^{2} [/tex]

[tex] \tt \Rightarrow 735 - 346,5 ~ {cm}^{2} [/tex]

[tex] \tt \Rightarrow 388,5 ~ {cm}^{2} [/tex]

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