Question

what is area of this traingle and the peramete please solve quick.
all of them ​

Answer 1

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1) → Perimeter = 8cm + 7cm + 6cm

  ⇒ Perimeter = 21cm

 

  height (h) = 6cm

  base (b) = 6cm

  → Area = $\frac{bh}{2}$

  ⇒ Area = $\frac{6*6}{2}$

  ⇒ Area = 18$cm^{2}$

2) → Perimeter = 6cm + 6cm + 3cm

   ⇒ Perimeter = 21cm

 

  height (h) = 5cm

  base (b) = 3cm

  → Area = $\frac{bh}{2}$

  ⇒ Area = $\frac{3*5}{2}$

  ⇒ Area = 15/2$cm^{2}$

3) → Perimeter = 6cm + 7cm + 8cm

   ⇒ Perimeter = 21cm

 

  height (h) = 6cm

  base (b) = 6cm

  → Area = $\frac{bh}{2}$

  ⇒ Area = $\frac{6*6}{2}$

  ⇒ Area = 18$cm^{2}$

4) → Perimeter = 5cm + 5cm + 5cm

   ⇒ Perimeter = 15cm

 

  height (h) = 4cm

  base (b) = 5cm

  → Area = $\frac{bh}{2}$

  ⇒ Area = $\frac{5*4}{2}$

  ⇒ Area = 10$cm^{2}$

5) → Perimeter = 5cm + 5cm + 4cm

   ⇒ Perimeter = 14cm

 

  height (h) = 4cm

  base (b) = 4cm

  → Area = $\frac{bh}{2}$

  ⇒ Area = $\frac{4*4}{2}$

  ⇒ Area = 8$cm^{2}$

6) → Perimeter = 8cm + 8cm + 8cm

   ⇒ Perimeter = 24cm

 

  height (h) = 7cm

  base (b) = 8cm

  → Area = $\frac{bh}{2}$

  ⇒ Area = $\frac{8*7}{2}$

  ⇒ Area = 28$cm^{2}$

7) → Perimeter = 4cm + 5cm + 6cm

   ⇒ Perimeter = 15cm

 

  height (h) = 5cm

  base (b) = 4cm

  → Area = $\frac{bh}{2}$

  ⇒ Area = $\frac{4*5}{2}$

  ⇒ Area = 10$cm^{2}$

8) → Perimeter = 8cm + 6cm + 6cm

   ⇒ Perimeter = 20cm

 

  height (h) = 5cm

  base (b) = 6cm

  → Area = $\frac{bh}{2}$

  ⇒ Area = $\frac{6*5}{2}$

  ⇒ Area = 15$cm^{2}$

9) → Perimeter = 7cm + 7cm + 7cm

   ⇒ Perimeter = 21cm

 

  height (h) = 6cm

  base (b) = 7cm

  → Area = $\frac{bh}{2}$

  ⇒ Area = $\frac{7*6}{2}$

  ⇒ Area = 21$cm^{2}$

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