Answer: 64cm Step-by-step explanation: length=17cm breadth=15cm Perimeter of rectangle = 2(l+b) =2(17+15) =64cm mark as brainliest Reply
[tex]\bf{\;\;\blue{Given :}} [/tex] Length = 17 cm Breadth = 15 cm [tex]\bf{\;\;\green{To \: find :}} [/tex] Perimeter of rectangle [tex]\bf{\;\;\red{Solution :}} [/tex] L = 15 H = 17 L² + B² = H² [tex]\bf{\;\;\blue{ =) \: (15) {}^{2} + B {}^{2} = (17) {}^{2} }}[/tex] [tex]\bf{\;\;\blue{ =) \: 225 +B {}^{2} = 289 }} [/tex] [tex]\;\;\bf{\;\;\red{ =) \: B {}^{2} = 289 – 225}} [/tex] [tex]\;\;\bf{\;\;\red{ = ) \: B {}^{2} = 64}} [/tex] [tex]\;\;\bf{\;\;\green{ = ) \: B = \sqrt{64} }} [/tex] [tex]\;\;\bf{\;\;\green{ = ) \: B = 8 \: cm}} [/tex] Breadth = 8 cm Area of rectangle = L × B = 15 × 8 = 120m² [tex]\sf Perimeter \: of \: rectangle \: = 2 ( L + B ) [/tex] [tex]\sf = 2 ( 15 + 8 ) \\ \sf= 2 ( 23 ) \\ \sf= 46 cm [/tex] Hence , the answer is 46 cm . Reply
Answer:
64cm
Step-by-step explanation:
length=17cm
breadth=15cm
Perimeter of rectangle = 2(l+b)
=2(17+15)
=64cm
mark as brainliest
[tex]\bf{\;\;\blue{Given :}} [/tex]
Length = 17 cm
Breadth = 15 cm
[tex]\bf{\;\;\green{To \: find :}} [/tex]
[tex]\bf{\;\;\red{Solution :}} [/tex]
L = 15
H = 17
L² + B² = H²
[tex]\bf{\;\;\blue{ =) \: (15) {}^{2} + B {}^{2} = (17) {}^{2} }}[/tex]
[tex]\bf{\;\;\blue{ =) \: 225 +B {}^{2} = 289 }} [/tex]
[tex]\;\;\bf{\;\;\red{ =) \: B {}^{2} = 289 – 225}} [/tex]
[tex]\;\;\bf{\;\;\red{ = ) \: B {}^{2} = 64}} [/tex]
[tex]\;\;\bf{\;\;\green{ = ) \: B = \sqrt{64} }} [/tex]
[tex]\;\;\bf{\;\;\green{ = ) \: B = 8 \: cm}} [/tex]
Breadth = 8 cm
Area of rectangle = L × B = 15 × 8 = 120m²
[tex]\sf Perimeter \: of \: rectangle \: = 2 ( L + B ) [/tex]
[tex]\sf = 2 ( 15 + 8 ) \\ \sf= 2 ( 23 ) \\ \sf= 46 cm [/tex]
Hence , the answer is 46 cm .